<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    
    <!-- 商品信息区域 -->
    <view class="goods-info_box">
      <!-- 商品价格 -->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!-- 商品主体区  -->
      <view class="goods-info-body">
        <!-- 商品的名字 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏区 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费 -->
      <view class="yf">快递：免运费</view>
    </view>
    
    <!-- 商品详情信息 -->
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    
    <!-- 商品导航组件区域 -->
      <view class="goods_nav">
        <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
      </view>
  </view>
</template>

<script>
  import {mapState,mapMutations,mapGetters} from 'vuex'
  export default {
    computed:{
      ...mapState('m_cart',[]),
      ...mapGetters("m_cart",['total'])
    },
    watch:{
      // total(newVal){
      //   const findResult=this.options.find((x)=>x.text==='购物车')
      //   if(findResult){
      //     findResult.info=newVal
      //   }
      // }
      total:{
        handler(newVal){
            const findResult=this.options.find((x)=>x.text==='购物车')
            if(findResult){
              findResult.info=newVal
            }
        },
        immediate:true
      }
    },
    data() {
      return {
        goods_info:{},
        options: [ {
            icon: 'shop',
            text: '店铺',
          }, {
            icon: 'cart',
            text: '购物车',
            info: 0
          }],
        buttonGroup: [{
            text: '加入购物车',
            backgroundColor: '#ff0000',
            color: '#fff'
          },
          {
            text: '立即购买',
            backgroundColor: '#ffa200',
            color: '#fff'
          }
        ]
        	  
      };
    },
    onLoad(options) {
      const goods_id=options.goods_id
      this.getGoodsDetail(goods_id)
    },
    methods:{
      async getGoodsDetail(goods_id){
        const {data:res}=await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
        // console.log(res)
        if(res.meta.status!==200) return uni.$showMsg()
        
        res.message.goods_introduce= res.message.goods_introduce.replace(/<img /g,'<img style="display:block;" ').replace(/webp/g,'jpg')
        
        this.goods_info=res.message
      },
      preview(i){
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x=>x.pics_big)
        })
      },
      onClick(e){
        if(e.content.text==='购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e){
        if(e.content.text==='加入购物车'){
          // 2. 组织一个商品的信息对象
          const goods= {
             goods_id: this.goods_info.goods_id,       // 商品的Id
             goods_name: this.goods_info.goods_name,   // 商品的名称
             goods_price: this.goods_info.goods_price, // 商品的价格
             goods_count: 1,                           // 商品的数量
             goods_small_logo: this.goods_info.goods_small_logo, // 商品的图片
             goods_state: true                         // 商品的勾选状态
          }
          this.addToCart(goods)
        }
      },
      ...mapMutations('m_cart',['addToCart'])
    }
  }
</script>

<style lang="scss">
swiper {
  height: 750rpx;
  image {
    width: 100%;
    height: 100%;
  }
}
.goods-info_box {
  padding: 10px;
  padding-right: 0;
  .price {
    color: #C00000;
    font-size: 18px;
    margin: 10px 0;
  }
  .goods-info-body {
    display: flex;
    justify-content: space-between;
    .goods-name {
      font-size: 13px;
      margin-right: 10px;
    }
    .favi {
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      border-left: 1px solid #efefef;
      color: gray;
    }
  }
  .yf {
    font-size: 12px;
    color: gray;
    margin: 10px 0;
  }
}
.goods_nav {
    // 为商品导航组件添加固定定位
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
}
.goods-detail-container {
  padding-bottom: 50px;
}
</style>
